@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,400;9..40,600;9..40,700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --color-bg: #0a0e14;
  --color-surface: #121820;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #e8edf4;
  --color-muted: #8b9cb3;
  --color-accent: #3ddea8;
  --color-accent-dim: rgba(61, 222, 168, 0.12);
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --radius: 0.5rem;
  --max-width: 48rem;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); }
a:hover { text-decoration: none; }

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.02em; }

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.site-header {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.site-header a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
}

.site-header nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

.site-header nav a { color: var(--color-muted); font-weight: 400; }
.site-header nav a:hover { color: var(--color-accent); }

main { padding: 2rem 0 3rem; }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.muted { color: var(--color-muted); font-size: 0.875rem; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

table.data-table th,
table.data-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

table.data-table th { color: var(--color-muted); font-weight: 500; }

.chart-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin: 1rem 0;
}

.disclaimer {
  font-size: 0.8125rem;
  color: var(--color-muted);
  border-left: 3px solid var(--color-accent-dim);
  padding-left: 1rem;
  margin: 1.5rem 0;
}

.source-attribution {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.site-footer {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-muted);
  text-align: center;
}

select, input, button {
  font: inherit;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

button {
  cursor: pointer;
  background: var(--color-accent-dim);
  border-color: var(--color-accent);
  color: var(--color-accent);
  font-weight: 600;
}

button:hover { filter: brightness(1.1); }